JP4266303B2 - Water discharge fitting - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water discharge fitting coupled to a water discharge port of a faucet.
[0002]
[Prior art]
Conventionally, a faucet generally used in a sink or a wash basin has a water discharge fitting coupled to a water discharge outlet, and discharges a direct current or foam fluid from the water discharge fitting. However, since such a water discharge fitting can discharge water only in a single water discharge form, a water discharge fitting in which the flow path of the fluid can be switched to direct current or foam according to the purpose of use is known. (For example, see Patent Document 1)
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 3-8940
[Problems to be solved by the invention]
The water discharge fitting changes the flow passage area through which the fluid passes by changing the opening of the decompression plate provided in the water discharge fitting according to the level of the water supply pressure, thereby obtaining a water discharge state according to the application. However, when the flow path area is set to be small, the flow rate of fluid discharged due to pressure loss may change, or when the fluid is hot water, the temperature may change.
[0005]
This invention pays attention to the problem which exists in such a prior art, and the objective is that the water discharging fitting couple | bonded with the water outlet of a faucet changes the flow-path area through which a fluid passes. It is possible to switch between direct current and foam, and to make it compact.
[0006]
[Means for Solving the Problems]
In the first aspect of the present invention, the water discharge fitting is coupled to the water discharge port of the faucet, and a first member having a water passage formed therein and a water passage communicating with the water passage of the first member are formed. A rectifier that rectifies the fluid in the water passage, and an opening hole that is coupled to the first member so as to move up and down and discharges the fluid that has passed through the water passage on the same axis as the rectifier. And an introduction path is formed between the outer peripheral surface of the rectifier and the inner peripheral surface of the first member, and the rectifier has a lateral hole that communicates the water passage and the introduction path. A bypass path is formed between the opening hole of the member and the introduction path to supply outside air to the rectifier to foam the fluid, and the bypass path can be opened and closed by adjusting the coupling position of the second member to the first member. And the flow path surface through which the fluid passes, regardless of whether the bypass is closed or connected Are those set to be equal.
[0007]
According to a second aspect of the present invention, the first member is detachably coupled to the water outlet of the faucet.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 4.
As shown in FIG. 1, the faucet 1 is provided with a mixing unit 2 for mixing hot water and water, and by operating a lever 3 linked to the mixing unit 2 up and down or left and right, the flow rate or temperature of the fluid Is adjusted, and the adjusted fluid is discharged from a water discharge pipe 4 that is rotatably mounted below the mixing unit 2.
[0009]
A water discharge port 5 for discharging the fluid adjusted by the mixing valve 2 to the outside is formed at the tip of the water discharge tube 4. As shown in FIG. 2, the water discharge port 5 has a male screw on the lower outer peripheral surface. A portion 6 is formed, and the water discharge fitting A of the present invention is coupled to the male screw portion 6.
[0010]
The water discharge fitting A is screwed into and coupled to a male screw portion 6 formed in the water discharge port 5. The first member 7 coupled to the water discharge port 5 and the inner peripheral side of the first member 7 And a second member 9 coupled to the outer peripheral side of the first member 7.
[0011]
The first member 7 has a substantially cylindrical shape that is open at both ends and penetrates the inside, and a step portion 10 is formed toward the inside at a substantially center of the water flow chamber 11 through which the fluid passes. A female threaded portion 12 is formed on one of the inner peripheral surfaces of the water flow chamber 11, and the female threaded portion 12 is connected to the male threaded portion 6 of the water discharge port 5 in a state where a watertight seal member 14 is disposed on the stepped portion 10. The water discharge fitting A is coupled to the water discharge port 5 by screwing. A male screw portion 13 is formed on the outer peripheral surface opposite to the female screw portion 12.
[0012]
The rectifier 8 has a substantially cylindrical shape and an outer diameter smaller than that of the first member 7, and an annular water passage 15 is formed in the water passage 15. A plurality of rectifying networks 17, A water spray plate 18 having a large number of small holes 19 and a mountain-shaped net 20 are sequentially inserted. A flange portion 16 is formed on the upper outer peripheral surface of the rectifier 8, and the rectifier 8 is inserted into the first member 7 by bringing the flange portion 16 into contact with the step portion 10 of the first member 7. At this time, an annular introduction path 27 is formed between the inner peripheral surface of the first member 7 and the outer peripheral surface of the rectifier 8, and the water passage 15 of the rectifier 8 has a plurality of lateral holes 21 formed on the side surface. To communicate with the introduction path 27.
[0013]
The second member 9 has a substantially cylindrical shape that is open at both ends and penetrates the inside, and an annular support portion 23 that protrudes toward the inside at the bottom of the water flow chamber 22 through which the fluid passes, and the support portion 23. And an opening hole 24 for discharging the fluid to the outside. A water-tight seal member 26 is disposed on the support portion 23, and a female screw portion 25 is formed on the inner peripheral surface of the water flow chamber 22. The female screw portion 25 is a male screw portion 13 of the first member 7. The first member 7 is coupled by being screwed to the first member 7.
[0014]
The spout fitting A rotates the second member 9 so that the coupling position of the second member 9 with respect to the first member 7 moves up and down, and the seal member 26 of the second member 9 is moved to the rectifier 8 as shown in FIG. When it is in close contact with the bottom surface, the passage from the opening hole 24 to the introduction path 27 is blocked. Further, when the second member 9 is lowered by rotating the second member 9 and the seal member 26 is separated from the bottom surface of the rectifier 8, as shown in FIG. 3, between the opening hole 24 and the introduction path 27, A bypass path B for supplying outside air to the rectifier 8 to foam the fluid is formed.
[0015]
As shown in FIG. 2, the water discharge fitting A is coupled to a male screw portion 6 formed in the water discharge port 5 at the tip of the water discharge pipe 4. In this case, the existing water discharge fitting connected to the water discharge port 5 can be removed and the water discharge fitting A of the present invention can be combined. In FIG. 2, since the water discharge fitting A has the sealing member 26 of the second member 9 in close contact with the bottom surface of the rectifier 8, the second member 9 has a bypass path B that connects the opening hole 24 and the introduction path 27. Closed by member 26. Accordingly, when the lever 3 of the faucet 1 is operated in the direction of water discharge, the fluid is supplied from the water discharge pipe 4 to the water discharge port 5, and subsequently passes through the water flow chamber 11 of the first member in the water discharge fitting A and passes through the rectifier 8. A DC fluid is supplied from the water channel 15 through the net 20, the small holes 19 of the water spray plate 18, the rectifying net 17 and the opening holes 24 of the second member 9.
[0016]
Next, when the second member 9 is rotated, as shown in FIG. 3, the coupling position between the female screw portion 25 of the second member 9 and the male screw portion 13 of the first member 7 moves downward, and the second member 9 The seal member 26 is separated from the bottom surface of the rectifier 8, and the opening hole 24 and the introduction path 27 communicate with each other through the bypass path B between the seal member 26 and the bottom surface of the rectifier 8. Therefore, when the lever 3 of the faucet 1 is operated in the direction of water discharge, the fluid is supplied from the water discharge pipe 4 to the water discharge port 5, and subsequently passes through the water flow chamber 11 of the first member 7 in the water discharge fitting A, The water passage 15 passes through the net 20, the small holes 19 of the water spray plate 18, and the rectifying network 17. At this time, the fluid is accelerated when passing through the small hole 19 of the water spray plate 18, and the outside air passes through the bypass B and the introduction path 27 formed between the first member 7 and the rectifier 8, and the rectifier 8 It is sucked into the rectifier 8 from the lateral hole 21, air is mixed into the fluid, and the foamy fluid is discharged from the opening hole 24.
[0017]
As described above, in the water discharge fitting according to the present invention, the fluid is supplied from the water discharge pipe to the water discharge port in either the direct current or foam discharge state, and then the water discharge fitting passes through the water passage chamber of the first member, and the rectifier. And water is discharged to the outside through the opening hole of the second member. In this way, the flow path area through which the fluid passes before water is discharged to the outside is the same, so there is no change in the flow rate or temperature of the fluid discharged to the outside due to pressure loss, and the water discharge fitting is compact. It can be formed.
[0018]
【The invention's effect】
In the present invention, the water discharge fitting is coupled to the water discharge port of the faucet, the first member having a water passage formed therein, and the water passage communicating with the water passage of the first member is formed. A rectifier that rectifies the fluid and a second member that is coupled to the first member so as to be movable up and down, and that has an opening formed on the same axis as the rectifier for discharging the fluid that has passed through the water passage. An introduction path is formed between the outer peripheral surface of the rectifier and the inner peripheral surface of the first member, and the rectifier is provided with a lateral hole that communicates the water passage and the introduction path. A bypass passage for supplying outside air to the rectifier to foam the fluid is formed between the first passage and the introduction passage, and the bypass passage can be opened and closed by adjusting the coupling position of the second member to the first member. The flow path area through which the fluid passes is the same in both the closed state and the connected state. Since the so that, without causing the flow rate or temperature changes of the fluid to be spouted to the outside by the pressure loss, DC, in any of the water discharge state of the foam, it is possible to supply a stable hot water.
[0019]
Moreover, since the water discharge fitting has a simple structure and a small number of parts, it can be easily assembled, productivity can be improved, and cost can be reduced.
[Brief description of the drawings]
FIG. 1 is an explanatory view of a state in which a water discharge fitting of the present invention is coupled to a water discharge port at a tip of a water discharge pipe of a faucet.
FIG. 2 is an enlarged cross-sectional view of a water discharge fitting, during direct current water discharge.
FIG. 3 is an enlarged cross-sectional view of the water discharge fitting when foam is discharged.
FIG. 4 is an exploded explanatory view of a water discharge fitting.
[Explanation of symbols]
1 faucet 5 water outlet 7 first member 8 rectifier 9 second member 11 water passage 15 water passage 21 lateral hole 24 opening hole 27 introduction passage A water discharge fitting B bypass passage

Claims (2)

A rectifier coupled to the water outlet of the faucet and having a water passage formed therein and a water passage communicating with the water passage of the first member is formed and rectifies the fluid in the water passage And a second member that is coupled to the first member so as to be movable up and down and that discharges fluid that has passed through the water passage, and is formed on the same axis as the rectifier, and an outer peripheral surface of the rectifier Is formed between the first member and the inner peripheral surface of the first member, a lateral hole is formed in the rectifier to connect the water passage and the introduction passage, and between the opening hole of the second member and the introduction passage. Is formed with a bypass path for supplying outside air to the rectifier to foam the fluid, and the bypass path can be opened and closed by adjusting the coupling position of the second member with respect to the first member. In any state, the flow path area through which the fluid passes is the same. Water discharge bracket to. The water discharge fitting according to claim 1, wherein the first member is detachably coupled to a water discharge port of a water faucet.

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